78312081 is an odd 8-digits composite number following 78312080
and preceding 78312082 . In scientific notation, it is written as 7.8312081 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 49136960 positive integers (up to 78312081) that are relatively prime to 78312081.
78312081 has 8 divisors, whose sum is 110558304
The reverse of 78312081 is 18021387
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
seventy-eight million three hundred twelve thousand eighty-one
Scientific notation
7.8312081 × 10^7
Engineering notation
7.8312081 × 10^6
Prime Factorization
3 × 17 × 1535531
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
78312081
Product of the distinct prime numbers
The prime factorization of 78312081 is 3 × 17 × 1535531.
Since it has a total of 3 prime factors.
4 , 4 , 7 , 75 , 213 , 683 , 280 , 706 , 47842 , 64639 , 31648 , 29273 , 8232497 , 1173814 , 17450837 , 21658850 , 687902737 , 844862110 , 613909337 , 9037836342
n×2
156624162
n×3
234936243
n×4
313248324
n×5
391560405
n÷2
39156040.5
n÷3
26104027
n÷3
19578020.25
n÷5
15662416.2
n2
6132782030550561
n3
4.8027092313182E+23
n4
3.7611015434244E+31
n5
2.9453968871788E+39
2 √n
8849.4113363545
3 √n
427.83494560031
4 √n
94.071309847129
5 √n
37.911044757934
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-78312080
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 78312081 can be divided by 8 positive divisors.
The sum of these divisors (counting 78312081) is 1, the average is 0.125.
Base
System
Value
2
Binary
100101010101111001010010001
3
Ternary
12110100122222110
4
Quaternary
10222233022101
5
Quinary
130021441311
6
Senary
11434255533
8
Octal
452571221
10
Decimal
78312081
12
Duodecimal
222875a9
16
Hexadecimal
4aaf291
20
Vigesimal
1499041
36
Base36
1amhzl
md5
a96d618be1cb55ed994f25da3c50079f
sha1
ed8e2a51f0285543041855441f9174a8f07c220b
sha256
c0d65cf269914ecf92bc8506b953370317aea2aa53c448fc03b92e12a9f87e2f
sha512
690ca8cedf99c4b2ba163eae8d894fb59db8a26aa4263550d8f8aa78a194b558bb03870561212edfc4b85eaae928217219898c5db23e9613581849fafad4bf1b
ripemd-160
bf17973c86743af02eb8b7d9e66ec9c33468bd10
Diameter
156624162
Circumference
492049316.71386
Area
1.9266702973245E+16
Volume
2.0117541384583E+24
Surface area
7.7066811892981E+16
Circumference
492049316.71386
Perimeter
313248324
Area
6132782030550561
Diagonal
110750007.04786
Surface area
36796692183303366
Volume
4.8027092313182E+23
Space diagonal
135640503.13845
Perimeter
234936243
Area
2.6555725171647E+15
Altitude
67820251.569225
Surface area
2.6555725171647E+15
Volume
5.6600471092206E+22
Height
36916669.015953